AirHint found the following cheapest return flights from Belfast (BFS) to Keflavik (KEF) in June 2026 (see full year).
Return flights
| 02 Jun - 06 Jun | easyJet | ||
| 02 Jun - 09 Jun | Ryanair | ||
| 26 Jun - 29 Jun | easyJet | ||
| 25 Jun - 02 Jul | Ryanair |
Also check the deals for one-way flights from Belfast to Keflavik in June.
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